*Not Peer-Reviewed, Yet* Single-cell RNA expression profiling of ACE2, the putative receptor of 2019-nCov

We also noticed that the only Asian donor (male) has a much higher ACE2-expressing cell ratio than white and African American donors (2.50% vs. 0.47% of all cells). This might explain the observation that the new Coronavirus pandemic and previous SARS-Cov pandemic are concentrated in the Asian area.
— Read on www.biorxiv.org/content/10.1101/2020.01.26.919985v1.full